// import {firstName as f,lastName as l} from './uitl'
// let p1 = new uitl.Person('ls',10);
// p1.sayName()
// import * as uitl from './uitl'
// console.log(uitl)
// console.log(uitl.firstName,uitl.lastName);

import P1,{firstName,lastName} from './uitl'

// let p1 = new P1('P1',10);
// p1.sayName();

console.log(P1);

console.log(firstName,lastName);

// if(x===1){
//     import P1 from './uitl'
// }else{
//     import reverse from './reverse'
// }



